Improved tool-holder fob slide-rest



ISRAEL F. BROWN, 0F NEW LONDON, CNNECTIUT.

Letters Patent No. 72,447, dated December 24, 1867.

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TO ALL WHOM IIT MAY OONERN:

. Be it known that I, ISRAEL F. BROWN,- of New London, in the county of New London, and State of Connecticut, have'invented a new and improved Tool-Holder for Slide-Rests; and I do herebyideclare that the folv lowing is a full, clear, and exact description thereof, which -will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon. This invention relates'to a new and improved tool-holder for slide-rests and other machines, and it consists in the employment or use of a V-shaped gib or key, iu connection with notches in the tool, and a slot in the tool-holder, .all being arranged in such a manner vthat the tool may be held firmly in position in the toolholder, and at the same time he capable of being readily fitted in and removed therefrom. In the accompanying sheet of drawings-l Figure-1 is aside view of my invention.

Figure 2, a sectionof'th'e same, taken in the line :u ze, iig. 1. Figure 8, a plan or top view of the front part of the tool-holder. v Figure4, a detached view ofthe V-shaped gib, showing the concave side.

Figure 5, a detached vertical section ofthe tool.and gib, taken in the line yy, iig. 2.

Similar letters of reference indicate like parts.

A represents the tool-holder, which is a`rectangular har of iron, having its outer end, a, bent, to form an obtuse angle, with its main portion, t, as shown clearly in g. 1. The front bent part a of the tool-holder has a slot, B, made entirely through it, which is of' quadrilateral form the tgreater portion off `its length, as shown at '0, the front vpart tbeing of V-shape, with its inner end rather wider than c, (sce figs. 2 and B represents the tool, which is of rectangular form in its transverse Section, and is notched at one of its corners, as shown at dx. C is a gib, which is of V-shape inv its transverse section, so that it may fit over the notched 'corner of the tool, and the gib has a wire, e, passing transversely through'it, as shown in igs. 4 and 5. The upper end of the gib is provided with a'angehf. D is a wedge or key, shown clearly in'tig. 1. The tool B is fitted in the front V-shaped end d of the slot B, and the gib C and key D aretted in the other part c, the -wire e, in

the gib, fitting in a notch, 01X, in the tool, and the key D, when driven in the slot B, keeps the wire e engaged with the notch, and holds allv firmly in the holder. I

1 The tool B may be4 adjusted higher or lower in the holder, bythe wire e of the gib being adjusted in higher or lower notches, as may be required, and in certain cases the key D may be-grooved longitudinally in V-form atene side, to operate both as a gib andwedge. Havig tlius described my invention, I claim as new, and desire to secure by Letters Patent-f v The notches (ZX, in the tool, in connection with the wiree, or its equivalent,'inthe V-groove, in the gib or key, substantially as and for the purpose set forth,

vISRAEL F. BROWN.

Witnesses: T. M'. WALLER, R. P. HUNrLEr. 

